TPS60400-Q1 - 60mA Charge Pump Inverter | TI Automotive
MPN: TPS60400-Q1 β Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $1.25 | $1.25 |
| 10 | $1.12 | $11.20 |
| 100 | $0.95 | $95.00 |
| 500 | $0.82 | $410.00 |
| 1,000 | $0.74 | $740.00 |
Drop-in alternatives for TPS60400-Q1 β same package, pin-to-pin compatible. Different-package parts requiring PCB rework are excluded.
Quick Comparison Tool β Select alternative parts for side-by-side comparison:
TPS60403-Q1
β Drop-Inπ Reference alternative (not in catalog)
TPS60401-Q1
β Drop-Inπ Reference alternative (not in catalog)
TPS60402-Q1
β Drop-Inπ Reference alternative (not in catalog)
NCP1729
β Drop-Inπ Reference alternative (not in catalog)
LM27761
β Drop-Inπ Reference alternative (not in catalog)
TPS60400-Q1 Maximum Ratings & Electrical Characteristics
| Function | Charge Pump Voltage Inverter |
| Output Type | Fixed (Negative, -Vin) |
| Input Voltage Range | 1.8 V to 5.25 V |
| Output Current | 60 mA |
| Switching Frequency | Variable (TPS60400-Q1) |
| Number of Outputs | 1 |
| Package | SC-74A, SOT-753 (DBV) |
| Mounting Type | Surface Mount |
| Operating Temperature Range | -40Β°C to +125Β°C |
| AEC-Q100 Qualified | Yes |
| Capacitors Required | Three 1-Β΅F ceramic |
| RoHS Status | Compliant |
| MSL Level | [DATA_NEEDED: MSL Level] |
| Quiescent Current | [DATA_NEEDED: Quiescent Current] |
| Output Voltage Ripple | [DATA_NEEDED: Output Voltage Ripple] |
TPS60400-Q1 Pin Configuration
| Pin 1 | C1+ β Flying capacitor positive terminal |
| Pin 2 | GND β Ground |
| Pin 3 | C1- β Flying capacitor negative terminal |
| Pin 4 | OUT β Negative output voltage |
| Pin 5 | IN β Input supply voltage |
Safe Operating Area (SOA) & Thermal Characteristics
No official SOA curve available for this component. Always operate within absolute maximum ratings specified in the datasheet. Ensure adequate cooling and derate as needed.
Typical Applications
TPS60400-Q1 is suitable for 6 applications: Automotive Sensor Interface, LCD Bias Supply, Audio Amplifier Negative Rail, Battery-Powered Portable Devices, Industrial Control Systems, Test and Measurement Equipment.
Automotive Sensor Interface
The TPS60400-Q1 generates a negative supply rail for operational amplifiers in automotive sensor interfaces. Its AEC-Q100 qualification ensures reliability in harsh automotive environments. The wide input range of 1.8 V to 5.25 V accommodates various battery voltages, and the 60-mA output is sufficient for low-power op-amps. The variable frequency reduces quiescent current during standby, extending battery life. The small SOT-23 package fits compact ECU designs.
Recommended
LCD Bias Supply
The TPS60400-Q1 provides a negative bias voltage for LCD displays in portable and automotive infotainment systems. The unregulated output is acceptable for LCD bias, and the low component count (three 1-Β΅F capacitors) simplifies design. The variable frequency operation reduces power consumption when the display is idle. The device's small footprint is ideal for space-constrained display modules. The input range supports 3.3 V and 5 V logic supplies.
Recommended
Audio Amplifier Negative Rail
The TPS60400-Q1 generates a negative supply for audio amplifiers and codecs, enabling single-supply operation. The 60-mA output is sufficient for small headphone amplifiers. The charge pump architecture avoids inductor-induced EMI, which is critical for audio quality. The variable frequency reduces noise at light loads. The device's low quiescent current helps extend battery life in portable audio devices.
Recommended
Battery-Powered Portable Devices
The TPS60400-Q1 is ideal for generating a negative rail in battery-powered devices such as handheld instruments and wearables. Its wide input range (1.8 V to 5.25 V) allows operation from single-cell Li-ion or dual-cell alkaline batteries. The variable frequency control minimizes power consumption at light loads, extending battery life. The small SOT-23 package and minimal external components reduce PCB area and BOM cost.
Recommended
Industrial Control Systems
The TPS60400-Q1 provides a negative supply for analog circuits in industrial control systems, such as PLCs and process controllers. The AEC-Q100 qualification ensures robust operation in industrial temperature ranges. The device's simplicity and reliability make it suitable for 24-V bus systems when paired with a pre-regulator. The variable frequency reduces EMI, which is important in noisy industrial environments.
Recommended
Test and Measurement Equipment
The TPS60400-Q1 is used in test and measurement equipment to generate a negative rail for precision analog circuits. The low noise and low EMI of the charge pump architecture are beneficial for sensitive measurements. The variable frequency operation reduces interference at different load conditions. The device's small size allows integration into compact benchtop instruments. The wide input range supports various power supply configurations.
Recommended
Recommended Products Summary
Engineering reference data for TPS60400-Q1 β comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | TPS60403-Q1 | TPS60401-Q1 | NCP1729 |
|---|---|---|---|---|
| Package | SC-74A, SOT-753 | SC-74A, SOT-753 | SC-74A, SOT-753 | SOT-23-5 |
| Brand | Texas Instruments | Texas Instruments | Texas Instruments | onsemi |
| Switching Frequency | Variable | 250 kHz | 20 kHz | Fixed (typical 25 kHz) |
| Output Current | 60 mA | 60 mA | 60 mA | 25 mA |
| Input Voltage Range | 1.8 V to 5.25 V | 1.8 V to 5.25 V | 1.8 V to 5.25 V | 1.15 V to 5.5 V |
| AEC-Q100 Qualified | Yes | Yes | Yes | No |
| Capacitors Required | Three 1-Β΅F | Three 1-Β΅F | Three 1-Β΅F | Three 1-Β΅F |
| Output Voltage Options | -Vin, 2Vin, Vin/2 | -Vin, 2Vin, Vin/2 | -Vin, 2Vin, Vin/2 | -Vin |
Key Differentiators
- Variable switching frequency for low quiescent current (vs TPS60403-Q1)
- AEC-Q100 automotive qualification (vs NCP1729)
- Higher output current (60 mA vs 25 mA) (vs NCP1729)
Design Notes
Place the three 1-Β΅F ceramic capacitors as close as possible to the TPS60400-Q1 pins to minimize parasitic inductance. The input capacitor should be placed between IN and GND, the output capacitor between OUT and GND, and the flying capacitor between C1+ and C1-. Use low-ESR ceramic capacitors (X5R or X7R) for stable operation. A solid ground plane is recommended to reduce noise and improve performance.
The TPS60400-Q1 is an unregulated inverter, so the output voltage will vary with input voltage and load. For applications requiring a regulated negative rail, consider adding a low-dropout regulator (LDO) after the charge pump or using a regulated inverter like the LM27761. The maximum output current is 60 mA; ensure the load does not exceed this limit to avoid output voltage droop.
Do not exceed the input voltage range of 1.8 V to 5.25 V, as this can damage the device. Ensure the flying capacitor is correctly oriented (if polarized, but ceramic capacitors are non-polarized). Avoid using capacitors with high ESR, as they can increase output ripple and reduce efficiency. Also, note that the output is unregulated, so it is not suitable for precision voltage references.
Compliance Information
AEC-Q100 qualified per DigChip datasheet. RoHS compliant per TI product page. Other compliance data not specified in provided sources.
